我根本需要getJson吗? [英] do I need getJson at all?

问题描述

   $(document).ready(function ()
    {
        $(".viewmap").click(function ()
        {
            var id = $(this).attr("id");
            var responseURL = "~/changemap?id=" + id;
            //alert(responseURL);
            $.ajax(
            {
                url: responseURL,
                dataType: "json",
                type:"GET",
                success: function (dt)
                {
                    initialize(dt.Latt, dt.Longt); 
                }
            }
            );
        }
        );
    });

我使用该脚本对页面changemap.cshtml进行ajax调用，该页面执行以下操作

I use that script to make an ajax call to the page changemap.cshtml which does the following

@{

    if(!IsPost)
    {
        if(!Request.QueryString["id"].IsEmpty()&&Request.QueryString["id"].IsInt())
        {
            var countryId=Request.QueryString["id"];
            var db=Database.Open("GoogleMapView");
            var dbCmd="SELECT * FROM places WHERE id=@0";
            var row=db.QuerySingle(dbCmd,countryId);
            if(null!=row)
            {
               Json.Write(row,Response.Output);
            }
        }
    }
}

这是将以json格式从数据库中查询的数据返回给客户端.初始化函数定义为

That is to return the queried data from the database in json format to the client. The Initialize function is defined as

function initialize(lat,lng)
            {
                var mapOptions = {
                    center: new google.maps.LatLng(lat,lng),zoom: 8,mapTypeId: google.maps.MapTypeId.ROADMAP 
                };
                var map = new google.maps.Map(document.getElementById("gmap"),mapOptions);
            }

但是当我单击类viewmap的div标签时，什么也没有发生.我想我想念更多的脚本来使我的应用程序正常工作.

But when I click the div tag of class viewmap, nothing happens. I think I miss some more script to get my application to work correctly.

我只尝试实现一个简单的Google地图视图，在该视图中，一旦用户单击一个地名作为超链接，就会重新加载与其匹配的地图.

I only try to implement a simple google map view in which once the user clicks a place name as a hyperlink will reload the map that matches with it.

推荐答案

我认为

var responseURL = "~/changemap?id=" + id;

应该是

var responseURL = '@(Url.Content("~/changemap")+"?id=")' + id;

这篇关于我根本需要getJson吗?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！